A welding system for a bilateral front swing arm connecting piece

Abstract

The present invention provides a welding system for bilateral front swing arm connectors, which is used to weld a first front swing arm connection half and a corresponding second front swing arm connection half into a front swing arm connector. The welding system is characterized by comprising: a first feeding device for the right side; a second feeding device for the right side; a first feeding device for the left side; a second feeding device for the left side; a manipulator for clamping and moving the first front swing arm connection half and the second front swing arm connection half, including a robotic arm and a clamping mechanism rotatably arranged on the robotic arm; a fixing device for the right side, which is used to fix the positions of the right-side type first front swing arm connection half and the right-side type second front swing arm connection half to be welded, including a positioning mechanism for the right side, a pressing mechanism for the right side and a sensor for the right side; a fixing device for the left side; a welding device for welding the first front swing arm connection half and the second front swing arm connection half, including a welding main body, a welding head and a welding base; and a controller.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive parts processing, and particularly to a welding system for bilateral front swing arm connectors. Background Art

[0002] With the development of the economy, automobiles have become means of transportation for daily use by people. The increasing demand for automobiles has led to higher and higher requirements for the processing of automotive parts.

[0003] The function of the automotive swing arm is to guide and support the suspension. Its deformation affects the wheel alignment and reduces the driving stability. In particular, the stability of the two front swing arm structures that connect the left front wheel and the right front wheel of the automobile respectively is very important for driving safety. The front swing arm is connected to the automobile body through a front swing arm connector. Therefore, the processing of the front swing arm connector is also an extremely important part of automobile production.

[0004] The front swing arm connectors are divided into a left-side front swing arm connector and a right-side front swing arm connector that are symmetrical to each other, and are respectively used to connect the left and right front swing arms of the automobile. Among them, the right-side front swing arm connector is welded by a right-side first front swing arm connection half part as shown in Figure 14 , 15 and a right-side second front swing arm connection half part as shown in Figures 16 - 18 .

[0005] In the prior art, the front swing arm connectors are usually manually welded, which consumes time and labor costs, has low processing efficiency, is prone to errors, the quality of the finished products is unstable, and there are safety hazards during the welding process. In addition, manual welding is not conducive to the automation of the overall production line of the factory. Therefore, it is an urgent need at present to design a welding system for bilateral front swing arm connectors that can replace manual welding. Summary of the Invention

[0006] The present invention is made to solve the above problems, and aims to provide a welding system for bilateral front swing arm connectors.

[0007] The present invention provides a welding system for bilateral front swing arm connectors, which is used to weld a first front swing arm connection half and a corresponding second front swing arm connection half into a front swing arm connector. The first front swing arm connection half is divided into a left-side first front swing arm connection half and a right-side first front swing arm connection half that are symmetrical to each other, and the second front swing arm connection half is also correspondingly divided into a left-side second front swing arm connection half and a right-side second front swing arm connection half that are symmetrical to each other. It is characterized by including: a first feeding device for the right side, which is used to feed the right-side first front swing arm connection half; a second feeding device for the right side, which is used to feed the right-side second front swing arm connection half; a first feeding device for the left side, which is used to feed the left-side first front swing arm connection half; a second feeding device for the left side, which is used to feed the left-side second front swing arm connection half; a manipulator, which is used to clamp and move the first front swing arm connection half and the second front swing arm connection half, and includes a robotic arm and a clamping mechanism rotatably arranged on the robotic arm; a fixing device for the right side, which is used to fix the positions of the right-side first front swing arm connection half and the right-side second front swing arm connection half to be welded, and includes a positioning mechanism for the right side, a pressing mechanism for the right side, and a sensor for the right side; a fixing device for the left side, which is used to fix the positions of the left-side first front swing arm connection half and the left-side second front swing arm connection half to be welded; a welding device, which is used to weld the first front swing arm connection half and the second front swing arm connection half, and includes a welding main body, a welding head, and a welding base; and a controller, which is used to control the operation of the first feeding device for the left side, the second feeding device for the left side, the first feeding device for the right side, the second feeding device for the right side, the manipulator, the fixing device for the left side, the fixing device for the right side, and the welding device.

[0008] In the welding system for bilateral front swing arm connectors provided by the present invention, it may also have the following characteristics. It further includes: a slide rail assembly, which is arranged on the ground and connected to the controller, and includes a sliding track, a sliding platform, and a sliding motor. Among them, the sliding platform is movably arranged on the sliding track, and the sliding motor is used to drive the sliding platform to move. The fixing device for the left side and the fixing device for the right side are installed on the sliding platform.

[0009] In the double-sided front swing arm connector welding system provided by the present invention, it may further have the following characteristics: when welding the right-side type front swing arm connector, the controller is used to control the slide rail assembly to drive the right-side fixing device to move below the welding head. The controller controls the first feeding device for the right side and the second feeding device for the right side to feed the first half of the right-side front swing arm connector and the second half of the right-side front swing arm connector respectively. Then, it controls the manipulator to pick up the workpieces to be welded from the two feeding devices and transfer them to the right-side fixing device, and then controls the right-side fixing device to press them tightly. Then, it first controls the welding device to weld the first predetermined area of the first half of the right-side front swing arm connector and the second half of the right-side front swing arm connector, and then controls the robotic arm to hold the second half of the right-side front swing arm connector to adjust the position and continue to complete the welding of other predetermined areas. Finally, it controls the robotic arm to transfer the welded front swing arm connector to the finished product area.

[0010] In the double-sided front swing arm connector welding system provided by the present invention, it may further have the following characteristics: among them, the first feeding device for the right side includes a first storage mechanism and a first feeding end, which is used to sequentially convey a plurality of stacked first halves of the right-side front swing arm connectors in the first storage mechanism to the first feeding end. The second feeding device for the right side includes a second storage mechanism and a second feeding end, which is used to sequentially convey a plurality of stacked second halves of the right-side front swing arm connectors in the second storage mechanism to the second feeding end.

[0011] In the double-sided front swing arm connector welding system provided by the present invention, it may further have the following characteristics: among them, the clamping mechanism includes a base, a first clamping part, and a second clamping part. The base is rotatably installed on the robotic arm. The first clamping part is installed on the base and includes a first upper clamping plate, a first lower clamping plate, and a first clamping cylinder. The second clamping part is installed on the base and includes a second upper clamping plate, a second lower clamping plate, and a second clamping cylinder. The first lower clamping plate and the second lower clamping plate are fixed on the base. The first upper clamping plate is arranged on the base in a liftable manner and is connected to the first clamping cylinder.

[0012] In the double-sided front swing arm connecting piece welding system provided by the present invention, the following features may also be included: The first front swing arm connecting half part includes a first bottom plate and a first side plate perpendicular to the first bottom plate. The first side plate is an obtuse triangle and has a first positioning hole. The second front swing arm connecting half part includes a second bottom plate, and a second side plate and a third side plate respectively perpendicular to both sides of the second bottom plate. The second bottom plate has a second positioning hole and a limiting hole. The second side plate is an obtuse triangle and is parallel to the first side plate. An obtuse angle is formed between the first bottom plate and the second bottom plate. One side of the second side plate also has a side plate folding part parallel to the first bottom plate. The second clamping part further includes a limiting cylinder and a connecting platform. The limiting cylinder is installed on the connecting platform. The connecting platform is connected to the second lower clamping plate. The diameter of the limiting cylinder is adapted to the aperture of the limiting hole, and is used for limiting the second front swing arm connecting half part.

[0013] In the double-sided front swing arm connecting piece welding system provided by the present invention, the following features may also be included: The second clamping part further includes a thrust assembly. The thrust assembly is used to push the second front swing arm connecting half part away from the limiting cylinder, and includes a telescopic push rod and a pushing air cylinder. The telescopic push rod is telescopically arranged on the connecting platform and is connected to the pushing air cylinder. The pushing air cylinder is installed on the connecting platform and is used to drive the telescopic push rod.

[0014] In the double-sided front swing arm connecting piece welding system provided by the present invention, the following features may also be included: The positioning mechanism for the right side includes a supporting base, a first positioning cone and a second positioning cone. The supporting base has a first supporting surface for fitting and supporting with the first bottom plate, a second supporting surface for fitting with the first side plate, a third supporting surface for fitting with the second bottom plate, and a fourth supporting surface for fitting with the second side plate. The first positioning cone is arranged on the second supporting surface, and its extending direction is perpendicular to the first side plate, and is used for passing through the first positioning hole to position the first front swing arm connecting half part of the right side type. The second positioning cone is arranged on the third supporting surface, and its extending direction is perpendicular to the second bottom plate, and is used for passing through the second positioning hole to position the second front swing arm connecting half part of the right side type.

[0015] In the double-sided front swing arm connecting piece welding system provided by the present invention, the following features may also be included: The positioning mechanism for the right side further includes a push rod assembly. The push rod assembly is arranged on one side of the first positioning cone of the supporting base, and includes a driving part and a limiting push rod that can be driven by the driving part to expand and contract along the extending direction of the first positioning cone. The limiting push rod moves towards the direction close to the supporting base to contact with the first side plate and makes the first side plate contact with the second supporting surface, so as to limit the first front swing arm connecting half part of the right side type.

[0016] In the double-sided front swing arm connecting piece welding system provided by the present invention, the following features may also be included: Among them, the pressing mechanism on the right side includes a fixed seat, a rotating member, a first pressing member, and a second pressing member. The rotating member includes a rotating end rotatably connected to the fixed seat. The first pressing member is fixed on the rotating member and has a first pressing surface that closely adheres to the side plate folding portion so as to press the right-side second front swing arm connecting half portion against the right-side first front swing arm connecting half portion from a direction perpendicular to the side plate folding portion. The second pressing member is fixed on the rotating member and has a second pressing surface that closely adheres to the second bottom plate so as to press the right-side second front swing arm connecting half portion against the right-side first front swing arm connecting half portion from a direction perpendicular to the second bottom plate. The sensor on the right side is used to sense whether the right-side first front swing arm connecting half portion and the right-side second front swing arm connecting half portion are positioned by the positioning mechanism on the right side. The rotating member rotates according to the sensing result of the sensor on the right side to press the right-side second front swing arm connecting half portion.

[0017] Functions and effects of the invention

[0018] The double-sided front swing arm connecting piece welding system involved in the present invention includes a first feeding device on the right side, a second feeding device on the right side, a first feeding device on the left side, a second feeding device on the left side, a manipulator, a fixing device on the right side, a fixing device on the left side, a welding device, and a controller. These structures have the following effects:

[0019] The first feeding device on the right side and the second feeding device on the right side can respectively feed the right-side first front swing arm connecting half portion and the right-side second front swing arm connecting half portion; the first feeding device on the left side and the second feeding device on the left side can respectively feed the left-side first front swing arm connecting half portion and the left-side second front swing arm connecting half portion, which can realize automatic feeding, reduce labor costs, and improve processing efficiency.

[0020] The manipulator includes a robotic arm and a clamping mechanism. The clamping mechanism is rotatably arranged on the robotic arm, making the manipulator have a high degree of freedom. The manipulator can clamp and move the first front swing arm connecting half portion and the second front swing arm connecting half portion, which can effectively shorten the time interval between processes, improve processing efficiency, and at the same time avoid potential safety hazards in manual operations.

[0021] The fixing device on the right side can fix the positions of the right-side first front swing arm connecting half and the right-side second front swing arm connecting half to be welded, including a positioning mechanism on the right side, a pressing mechanism on the right side, and a sensor on the right side. The positioning mechanism on the right side can position the right-side first front swing arm connecting half and the right-side second front swing arm connecting half to be welded. The sensor on the right side can sense whether the right-side first front swing arm connecting half and the right-side second front swing arm connecting half are correctly positioned, avoiding welding position errors and improving the finished product rate. The pressing mechanism on the right side can press the right-side first front swing arm connecting half and the right-side second front swing arm connecting half on the positioning mechanism on the right side, making the contact parts of the two closer, not easily shaking and shifting during the welding process, and effectively improving the welding accuracy.

[0022] The fixing device on the left side can fix the positions of the left-side first front swing arm connecting half and the left-side second front swing arm connecting half to be welded, not easily shaking and shifting during the welding process, and effectively improving the welding accuracy.

[0023] The welding device can weld the first front swing arm connecting half and the second front swing arm connecting half, including a welding main machine, a welding head, and a welding base. The welding device can weld the first front swing arm connecting half and the second front swing arm connecting half together to obtain a finished front swing arm connecting piece.

[0024] The controller can control the operation of the first feeding device on the left side, the second feeding device on the left side, the first feeding device on the right side, the second feeding device on the right side, the manipulator, the fixing device on the left side, the fixing device on the right side, and the welding device.

[0025] Therefore, the double-sided front swing arm connecting piece welding system involved in the present invention can replace manual labor to realize the automated processing process of feeding, positioning, and welding of the first front swing arm connecting half and the second front swing arm connecting half. It can be applied to the welding of both left-side front swing arm connecting pieces and right-side front swing arm connecting pieces, reducing the labor and material costs in production and processing. At the same time, it can also avoid the safety hazards existing in manual operations, improve the processing efficiency and the finished product rate, and ensure the consistency of the finished product quality, achieving a better processing effect. The double-sided front swing arm connecting piece welding system replacing manual labor for welding processing also helps to realize the automation of the overall production line. Description of the Drawings

[0026] Figure 1 is the structural block diagram of the double-sided front swing arm connecting piece welding system in the embodiment of the present invention;

[0027] Figure 2 is the top view structural schematic diagram of the first feeding device on the right side in the embodiment of the present invention;

[0028] Figure 3It is a top - view structural schematic diagram of the right - hand side using the second feeding device in the embodiment of the present invention;

[0029] Figure 4 It is a structural schematic diagram of the clamping mechanism in the embodiment of the present invention;

[0030] Figure 5 It is a top - view of the clamping mechanism in the embodiment of the present invention;

[0031] Figure 6 It is a top - view structural schematic diagram of the positioning mechanism on the right - hand side in the embodiment of the present invention;

[0032] Figure 7 It is a front - view structural schematic diagram of the positioning mechanism on the right - hand side in the embodiment of the present invention;

[0033] Figure 8 It is a side - view structural schematic diagram of the positioning mechanism on the right - hand side in the embodiment of the present invention;

[0034] Figure 9 It is a left - view structural schematic diagram of the pressing mechanism on the right - hand side in the embodiment of the present invention;

[0035] Figure 10 It is a right - view structural schematic diagram of the pressing mechanism on the right - hand side in the embodiment of the present invention;

[0036] Figure 11 It is a working schematic diagram of the cooperation between the pressing mechanism on the right - hand side and the positioning mechanism on the right - hand side in the embodiment of the present invention;

[0037] Figure 12 It is a rear - view structural schematic diagram of the working state of the pressing mechanism on the right - hand side in the embodiment of the present invention;

[0038] Figure 13 It is a front - view structural schematic diagram of the working state of the pressing mechanism on the right - hand side in the embodiment of the present invention;

[0039] Figure 14 It is a top - view structural schematic diagram of the right - hand - side type first front swing - arm connecting half - part in the embodiment of the present invention;

[0040] Figure 15 It is a side - view structural schematic diagram of the right - hand - side type first front swing - arm connecting half - part in the embodiment of the present invention;

[0041] Figure 16 It is a front - view structural schematic diagram of the right - hand - side type second front swing - arm connecting half - part in the embodiment of the present invention;

[0042] Figure 17 It is a top - view structural schematic diagram of the right - hand - side type second front swing - arm connecting half - part in the embodiment of the present invention; and

[0043] Figure 18It is a schematic side view structure diagram of the right-side second front swing arm connection half part in the embodiment of the present invention. Detailed implementation manners

[0044] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the following embodiments will specifically elaborate on the bilateral front swing arm connector welding system of the present invention in conjunction with the accompanying drawings.

[0045] Figure 14 It is a schematic top view structure diagram of the right-side first front swing arm connection half part in the embodiment of the present invention, Figure 15 It is a schematic side view structure diagram of the right-side first front swing arm connection half part in the embodiment of the present invention.

[0046] The first front swing arm connection half part is divided into a left-side first front swing arm connection half part and a right-side first front swing arm connection half part 200 that are symmetric to each other. The second front swing arm connection half part is also correspondingly divided into a left-side second front swing arm connection half part and a right-side second front swing arm connection half part 300 that are symmetric to each other. The left-side front swing arm connector is formed by welding the left-side first front swing arm connection half part and the left-side second front swing arm connection half part. The right-side front swing arm connector is formed by welding the right-side first front swing arm connection half part 200 and the right-side second front swing arm connection half part 300. The left-side front swing arm connector and the right-side front swing arm connector are symmetric to each other left and right. As Figure 14 , 15As shown, the right-side first front swing arm connecting half part 200 includes a first bottom plate 201 and a first side plate 202 perpendicular to the first bottom plate. The first side plate 202 is an obtuse triangle. The first bottom plate 201 is plate-shaped and has a first bottom plate part 203 and a second bottom plate part 204. The first bottom plate part 203 is rectangular. There is an obtuse angle between the second bottom plate part 204 and the plate surface of the first bottom plate part 203, and the length of the second bottom plate part 204 is less than that of the first bottom plate part 203. Both the first bottom plate part 203 and the second bottom plate part 204 are connected to the first side plate 202 and extend vertically upward with respect to the first side plate 202. The first side plate 202 is plate-shaped. The side connected to the first bottom plate 201 is a connecting side 205. The connecting side 205 has a folded part, which is matched with the first bottom plate part 203 and the second bottom plate part 204. One end of the connecting side 205 close to the second bottom plate part 204 is provided with a first side edge 206 perpendicular to the second bottom plate part 204. The other end of the first side edge 206 is provided with an inclined edge 207 parallel to the second bottom plate part 204, that is, the inclined edge 207 is arranged opposite to the first bottom plate 201. One end of the connecting side 205 close to the first bottom plate part 203 is provided with a serrated edge 208 that forms an obtuse angle with the first bottom plate part 203. There are three concave parts distributed along the length direction on the serrated edge 208. One end of the serrated edge 208 far from the first bottom plate 201 is provided with a second side edge 209 that forms an obtuse angle with the serrated edge 208. The other end of the second side edge 209 is connected to the inclined edge 207 and forms a right angle with the inclined edge 207. The length of the inclined edge 207 is greater than that of the serrated edge 208, and the length of the serrated edge 208 is much greater than the lengths of the first side edge 206 and the second side edge 209. A first positioning hole 210 is provided on the first side plate 202. The first positioning hole 210 is a circular through hole provided on the side of the middle part of the first side plate 202 closer to the second side edge. A first through hole 210a is also provided on the side of the first positioning hole 210 of the first side plate 202 close to the first side edge 206.

[0047] Figure 16 is the front view structural schematic diagram of the right-side second front swing arm connecting half part in the embodiment of the present invention, Figure 17 is the top view structural schematic diagram of the right-side second front swing arm connecting half part in the embodiment of the present invention, Figure 18 is the side view structural schematic diagram of the right-side second front swing arm connecting half part in the embodiment of the present invention.

[0048] As Figures 16 - 18As shown in the figure, the right-side second front swing arm connecting half part 300 includes a second bottom plate 301, a second side plate 302 and a third side plate 303 which are respectively vertically arranged on both sides of the second bottom plate 301. The second bottom plate 301 is in a plate shape and has a bottom plate main body part 304 in a rectangular shape and a folding part 305 arranged at one end of the bottom plate main body part 304 and folded to one side. The folding part 305 forms an obtuse angle with the bottom plate main body part 304. The second side plate 302 and the third side plate 303 are respectively arranged on opposite side edges of the second bottom plate 301 and folded in the opposite direction to the folding part 305 and perpendicular to the bottom plate main body part 304. The third side plate 302 is triangular and is connected to the side edges of both the bottom plate main body part 304 and the folding part 305. One end of the first side plate 302 far from the folding part 305 is also provided with a side plate folding part 307 folded towards the direction close to the second bottom plate 301. The third side plate 303 is rectangular and has an area smaller than that of the second side plate 302. An inclined edge 306 is arranged on the side of the third side plate 303 far from the bottom plate main body part 304 and close to the folding part 305, and the included angles between the inclined edge 306 and the adjacent two sides are rounded corners. A second positioning hole 308 is arranged on the bottom plate main body part 304 of the second bottom plate 301, and the second positioning hole 308 is located on one side of the middle of the bottom plate main body part 304 close to the folding part 305. A limiting hole 308a is also arranged on the side of the second positioning hole 308 on the bottom plate main body part 304 far from the folding part 305.

[0049] The first side plate 202 of the right-side first front swing arm connecting half part 200 has the same shape as the second side plate 302 of the right-side second front swing arm connecting half part 300, and the shape and width of the first bottom plate 201 match those of the second bottom plate 301. The right-side first front swing arm connecting half part 200 and the right-side second front swing arm connecting half part 300 can be connected to form a right-side front swing arm connecting part. After connection, the first side plate 202 of the right-side first front swing arm connecting half part 200 is parallel to the second side plate 302 of the right-side second front swing arm connecting half part 300. The inner surface of the side plate folding part 307 of the right-side second front swing arm connecting half part 300 is connected to the outer surface of the first bottom plate part 203 of the right-side first front swing arm connecting half part 200, and the inner surface of the third side plate 303 is connected to the outer surface of the serrated edge 208 of the first side plate 202. After connection, an obtuse angle is formed between the first bottom plate 201 of the right-side first front swing arm connecting half part 200 and the second bottom plate 301 of the right-side second front swing arm connecting half part 300.

[0050] Figure 1 It is the structural block diagram of the double-sided front swing arm connecting part welding system in the embodiment of the present invention.

[0051] As Figure 1As shown, the double-sided front swing arm connecting member welding system 100 includes a first feeding device 10 for the right side, a second feeding device 20 for the right side, a manipulator 30, a fixing device 40 for the right side, a welding device 50, a controller 60, a first feeding device 70 for the left side, a second feeding device 80 for the left side, a fixing device 90 for the left side, and a slide rail assembly 00.

[0052] Figure 2 It is a top view structural schematic diagram of the first feeding device for the right side in an embodiment of the present invention.

[0053] The first feeding device 10 for the right side is used to feed the first front swing arm connecting half part 200 of the right side type. As Figure 2 shown, the first feeding device 10 for the right side includes a first storage mechanism 11 and a first feeding end 12, and is used to sequentially convey a plurality of stacked first front swing arm connecting half parts 200 of the right side type in the first storage mechanism 11 to the first feeding end 12.

[0054] Figure 3 It is a top view structural schematic diagram of the second feeding device in an embodiment of the present invention.

[0055] The second feeding device 20 for the right side is used to feed the second front swing arm connecting half part 300 of the right side type. As Figure 3 shown, the second feeding device 20 for the right side includes a second storage mechanism 21 and a second feeding end 22, and is used to sequentially convey a plurality of stacked second front swing arm connecting half parts 300 of the right side type in the second storage mechanism 21 to the second feeding end 22.

[0056] The first feeding device 70 for the left side is symmetrically structured with the first feeding device 10 for the right side, and the second feeding device 80 for the left side is symmetrically structured with the second feeding device 20 for the right side, which will not be elaborated here.

[0057] Figure 4 It is a structural schematic diagram of the clamping mechanism in an embodiment of the present invention, Figure 5 It is a top view of the clamping mechanism in an embodiment of the present invention.

[0058] As Figure 4 、 5 shown, the manipulator 30 is used to clamp and move the first front swing arm connecting half part 200 of the right side type and the second front swing arm connecting half part 300 of the right side type, and includes a robotic arm and a clamping mechanism 32 rotatably arranged on the robotic arm. The robotic arm is used to drive the clamping mechanism 32 to move, which is a specific prior art and will not be elaborated here.

[0059] The clamping mechanism 32 includes a base 321, a first clamping part 322, and a second clamping part 323.

[0060] The base 321 is rotatably mounted on the robotic arm through a rotating shaft. The first clamping part 322 and the second clamping part 323 are both mounted on the base 321. The first clamping part 322 and the second clamping part 323 have the same structural composition, and the first clamping part 322 and the second clamping part 323 are symmetric with each other in the left-right direction. When welding the right-side front swing arm connecting piece, the first clamping part 322 is used to clamp and move the right-side first front swing arm connecting half part 200, and the second clamping part 323 is used to clamp and move the right-side second front swing arm connecting half part 300; when welding the left-side front swing arm connecting piece, the first clamping part 322 is used to clamp and move the left-side second front swing arm connecting half part, and the second clamping part 323 is used to clamp and move the left-side first front swing arm connecting half part.

[0061] The first clamping part 322 includes a first upper clamping plate 3221, a first lower clamping plate 3222, a first clamping cylinder 3223, a first lifting push rod 3224, a first limiting cylinder 3225, a first connecting platform 3226 and a first thrust assembly 3227. The first lower clamping plate 3222 is fixed on the base 321, and the first upper clamping plate 3221 is connected to the first clamping cylinder 3223 through the first lifting push rod 3224. The first upper clamping plate 3221 is arranged above the first lower clamping plate 3222 in a liftable manner, and the lower surface of the first upper clamping plate 3221 and the upper surface of the first lower clamping plate 3222 are parallel planes. When it is necessary to clamp and move the right-side first front swing arm connecting half part 200, the first upper clamping plate 3221 and the first lower clamping plate 3222 clamp on the second bottom plate part 204, and the first side plate 202 and the first bottom plate part 203 are suspended. When it is necessary to clamp and move the left-side second front swing arm connecting half part, the first upper clamping plate 3221 and the first lower clamping plate 3222 clamp on the folded part of the second bottom plate. The first limiting cylinder 3225 is inserted into the limiting hole to limit the left-side second front swing arm connecting half part. The first thrust assembly 3227 is used to push the left-side second front swing arm connecting half part to transfer it to the left-side fixing device 90.

[0062] The second clamping part 323 is structurally symmetrical to the left and right with the first clamping part 322, and includes a second upper clamping plate 3231, a second lower clamping plate 3232, a second clamping cylinder 3233, a second lifting push rod 3234, a second limiting cylinder 3235, a second connecting platform 3236 and a second thrust assembly 3237. The second upper clamping plate 3231 is connected to the second clamping cylinder 3233 through the second lifting push rod 3234. The second lower clamping plate 3232 is fixed on the base 321. The second upper clamping plate 3231 is arranged above the second lower clamping plate 3232 in a liftable manner. The lower surface of the second upper clamping plate 3231 and the upper surface of the second lower clamping plate 3232 are parallel planes. When clamping the right-side type second front swing arm connecting half part 300, the second upper clamping plate 3231 and the second lower clamping plate 3232 are clamped on the folding part 305 of the second bottom plate 301. The end of the second limiting cylinder 3235 has a chamfer. The diameter of the second limiting cylinder 3235 is adapted to the aperture of the limiting hole 308a, and is used to insert into the limiting hole 308a to limit the right-side type second front swing arm connecting half part 300. The second limiting cylinder 3235 is installed on the second connecting platform 3236. The second connecting platform 3236 is inclined and arranged on the side surface of the second lower clamping plate 3232. The included angle between the upper surface of the second connecting platform 3236 and the upper surface of the second lower clamping plate 3232 is equal to the bending angle between the folding part 305 of the second bottom plate 301 and the bottom plate main body part 304. The second thrust assembly 3237 is used to push the right-side type second front swing arm connecting half part 300, so that the limiting hole 308a is disengaged from the second limiting cylinder 3235, and the right-side type second front swing arm connecting half part 300 is transferred from the second clamping part 323 to the right-side fixing device 40. The second thrust assembly 3237 includes a telescopic push rod 32371 and a thrust cylinder 32372. The thrust cylinder 32372 is installed below the second connecting platform 3236 and is used to push the telescopic push rod 32371. The telescopic push rod 32371 is telescopically arranged on the second connecting platform 3236 and is connected to the thrust cylinder 32372. The telescopic push rod 32371 is arranged in parallel with the second limiting cylinder 3235. The telescopic length of the telescopic push rod 32371 is slightly greater than the height of the second limiting cylinder 3235. When clamping the left-side type first front swing arm connecting half part, the second upper clamping plate 3231 and the second lower clamping plate 3232 are clamped on the second bottom plate part, and the first side plate and the first bottom plate part are suspended.

[0063] The right-side fixing device 40 is used to fix the positions of the right-side type first front swing arm connecting half part 200 and the right-side type second front swing arm connecting half part 300 to be welded, and includes a right-side positioning mechanism 41, a right-side pressing mechanism 42 and a right-side sensor. The left-side fixing device 90 is structurally symmetrical to the right-side fixing device 40 and will not be described in detail here.

[0064] Figure 6 is a top view structural schematic diagram of the right-side positioning mechanism in the embodiment of the present invention,Figure 7 It is a front view structural schematic diagram of the positioning mechanism on the right side in an embodiment of the present invention, Figure 8 and it is a side view structural schematic diagram of the positioning mechanism on the right side in an embodiment of the present invention.

[0065] As Figures 6 - 8 shown, the positioning mechanism 41 for the right side includes a supporting base 411, a push rod assembly 412 and a supporting table 413, and is used to position the right-side first front swing arm connecting half part 200 and the right-side second front swing arm connecting half part 300.

[0066] The supporting base 411 includes a first supporting unit 4111, a first positioning unit 4112, a second supporting unit 4113, a second positioning unit 4114 and a third supporting unit 4115.

[0067] The first supporting unit 4111 includes a first supporting member 41111 and a second supporting member 41112.

[0068] The first supporting member 41111 includes a first extension part 41113 and a first supporting part 41114. The first extension part 41113 is in the shape of a column with a rectangular cross-section, is fixed on the supporting table 413, and extends upward in the vertical direction. The first supporting part 41114 is arranged at the top end of the first extension part 41113, is in the shape of a cuboid and its length direction extends along the first horizontal direction. The top surface of the first supporting part 41114, that is, the surface away from the first extension part 41113, is the first supporting surface 41115, and the first supporting surface 41115 is attached to the first bottom plate 201 of the right-side first front swing arm connecting half part 200 to support the right-side first front swing arm connecting half part 200.

[0069] In this embodiment, the second supporting member 41112 is a limit screw, is arranged on the side surface of the first extension part 41113 and extends along the first horizontal direction. The distance between the end surface of the limit screw away from the first extension part 41113 and the surface of the first extension part 41113 away from the second supporting member 41112 is greater than the length of the first supporting part 41114. The end surface of the limit screw away from the first extension part 41113 is the second supporting surface 41118, and the second supporting surface 41118 is attached to the first side plate 202 of the right-side first front swing arm connecting half part 200 for positioning.

[0070] The first positioning unit 4112 includes a first positioning member 41121 and a first positioning cone 41122.

[0071] The first positioning member 41121 is in the shape of a cuboid, is fixed on the supporting table 413, and is arranged closely adjacent to the first supporting unit 4111.

[0072] The first positioning cone 41122 is a cone with a hexagonal bottom surface, fixed on the first positioning member 41121 and extending along the first horizontal direction. The first positioning cone 41122 matches the first positioning hole 210 of the right-side first front swing arm connecting half 200, and the first positioning cone 41122 is perpendicular to the first side plate 202, and is used to pass through the first positioning hole 210 to position the right-side first front swing arm connecting half 200. The tip of the first positioning cone 41122 and the second supporting surface 41118 are located in the same vertical plane.

[0073] The second supporting unit 4113 includes a third fixing member 41131, a fourth fixing member 41132, and a second limiting member 41133.

[0074] The third fixing member 41131 is columnar with a rectangular cross-section, fixed on the supporting platform 413, arranged closely against the side of the first supporting member 41111 away from the second supporting member 41112 and extending along the vertical direction. An installation recess recessed along the first horizontal direction is provided in the middle of the third fixing member 41131. The fourth fixing member 41132 is a cuboid matching the installation recess, and is fixedly installed in the installation recess by screws and extends along the second horizontal direction perpendicular to the first horizontal direction towards the direction close to the first positioning unit 4112.

[0075] The second limiting member 41133 is fixed at one end of the fourth fixing member 41132 away from the third fixing member 41131 and extends along the first horizontal direction towards the direction away from the first positioning unit 4112. In this embodiment, the second limiting member 41133 is a limiting screw the same as the second supporting member 41112, and the second limiting member 41133 is threadedly connected to the fourth fixing member 41132. The end face of the nut of the second limiting member 41133 away from the fourth fixing member 41132 is the fourth supporting surface 41134, and the fourth supporting surface 41134 is fitted with the second side plate 302 of the right-side second front swing arm connecting half 300 for positioning.

[0076] The second positioning unit 4114 includes a second positioning member 41141, a second positioning cone 41142, and a second adjusting component 41143.

[0077] The second positioning member 41141 is fixed on the supporting platform 413, located on the side of the first positioning unit 4112 and the second limiting member 41133 away from the first supporting unit 4111. The second positioning member 41141 includes a second installation part 41144, a second extension part 41145, and a magnet 41149.

[0078] The vertical cross-section of the second installation part 41144 is zigzag, one end is fixed on the supporting platform 413 through the second adjusting component 41143, and the other end extends obliquely upward and is connected to the second extension part 41145.

[0079] The second extension part 41145 is columnar with a rectangular cross-section. One end of it is connected to the second mounting part 41144, and the other end extends upward along a direction that is vertical and inclined towards the second supporting unit 4113. Its inclination angle matches the angle between the first bottom plate 201 of the right-side type first front swing arm connecting half part 200 and the second bottom plate 301 of the right-side type second front swing arm connecting half part 300. That is, the surface of the second extension part 41145 away from the second supporting unit 4113 is the third supporting surface 41146.

[0080] The magnet 41149 is arranged on the third supporting surface 41146 and is used to attract the right-side type second front swing arm connecting half part 300.

[0081] The third supporting surface 41146 is in contact with the second bottom plate 301 of the right-side type second front swing arm connecting half part 300 and is attracted by the magnet 41149 to support the right-side type second front swing arm connecting half part 300.

[0082] The second positioning cone 41142 is fixed at one end of the second extension part 41145 away from the second mounting part 41144, is located on the surface away from the second supporting unit 4113, and extends along a direction perpendicular to the second extension part 41145, that is, it is inclined upward along the second horizontal direction.

[0083] The second positioning cone 41142 is perpendicular to the second bottom plate 301 of the right-side type second front swing arm connecting half part 300 and matches the second positioning hole 308, and is used to pass through the second positioning hole 308 to position the right-side type second front swing arm connecting half part 300.

[0084] In this embodiment, the second positioning cone 41142 is a cone with a hexagonal bottom surface.

[0085] The second adjusting assembly 41143 includes a fifth fixing part 41147 and an adjusting part 41148. The fifth fixing part 41147 is fixed on the supporting table 413. One end of the adjusting part 41148 is connected to the fifth fixing part 41147 by a screw, and the other end is fixedly connected to the second mounting part 41144.

[0086] By changing the angle between the adjusting part 41148 and the fifth fixing part 41147, the inclination angles of the second positioning part 41141 and the second positioning cone 41142 can be changed.

[0087] The push rod assembly 412 is arranged on the side of the first supporting unit 4111 away from the second supporting unit 4113, and includes a driving part 4121 and a push rod 4122 that can be driven by the driving part 4121 to expand and contract along the first horizontal direction. The driving part 4121 is fixed on the supporting table 413.

[0088] When the clamping mechanism 32 conveys the right-side type first front swing arm connecting half part 200 to the right-side positioning mechanism 41 and makes the first bottom plate 201 contact with the first supporting surface 41115, the push rod 4122 moves towards the direction close to the first supporting unit 4111, contacts with the first side plate 202 and pushes the right-side type first front swing arm connecting half part 200, so that the first side plate 202 fits with the second supporting surface 41118 to realize the positioning of the right-side type first front swing arm connecting half part 200.

[0089] The supporting base 411 further includes a third supporting unit 4115, which is arranged on the side of the first supporting unit 4111 away from the second positioning unit 4114, is columnar, and has the same height as the first supporting member 41111.

[0090] Figure 9 It is the left view structural schematic diagram of the right-side pressing mechanism in the embodiment of the present invention. Figure 10 It is the right view structural schematic diagram of the right-side pressing mechanism in the embodiment of the present invention. Figure 11 It is the schematic diagram of the cooperation between the right-side pressing mechanism and the right-side positioning mechanism in the embodiment of the present invention. Figure 12 It is the rear view structural schematic diagram of the working state of the right-side pressing mechanism in the embodiment of the present invention. Figure 13 It is the front view structural schematic diagram of the working state of the right-side pressing mechanism in the embodiment of the present invention.

[0091] As Figures 9 - 13 As shown, the right-side pressing mechanism 42 includes a base 421, a rotating member 422, a first pressing member 423, a second pressing member 424 and a limiting member 425, and is used for pressing the right-side type first front swing arm connecting half part 200 and the right-side type second front swing arm connecting half part 300 positioned by the right-side positioning mechanism 41.

[0092] One end of the rotating member 422 of the right-side pressing mechanism 42 is rotatably connected to the base 421, and the first pressing member 423, the second pressing member 424 and the limiting member 425 are installed on the rotating member 422.

[0093] The base 421 is connected to the supporting table 413, and the positions of the right-side pressing mechanism 42 and the right-side positioning mechanism 41 are matched, so that after the right-side positioning mechanism 41 positions the right-side type first front swing arm connecting half part 200 and the right-side type second front swing arm connecting half part 300, pressing can be carried out.

[0094] The base 421 is arranged on the side where the second positioning cone 41142 of the right-side positioning mechanism 41 is located.

[0095] The rotating member 422 includes a connecting portion 4221, a first extending portion 4222, a second extending portion 4223 and a third extending portion 4224.

[0096] The connecting part 4221 includes two parallel ear seats 42211. The two ear seats 42211 are rotatably connected to the base 421 through a rotating shaft passing through the base 421. The ear seats 42211 of the connecting part 421 are the rotating ends. The rotating ends enable the rotating member 422 to rotate between the initial position and the working position. The working position is the position where the rotating member 422 is located when the pressing mechanism 42 on the right presses the right-side second front swing arm connecting half part 300 and the right-side first front swing arm connecting half part 200 onto the positioning mechanism 41 on the right. A rectangular connecting block 42212 is arranged between the two ear seats 42211.

[0097] The first extension part 4222 is in the shape of a rod with a rectangular cross-section, and one end is connected to the bottom of the connecting block 42212 of the connecting part 4221.

[0098] When the rotating member 422 is in the working position, the first extension part 4222 extends horizontally in the direction close to the second bottom plate 301 of the right-side second front swing arm connecting half part 300.

[0099] The second extension part 4223 is arranged at one end of the first extension part 4222 away from the connecting part 4221, and is in the shape of a rod with a rectangular cross-section. When the rotating member 422 is in the working position, the second extension part 4223 extends upward along the direction parallel to the second bottom plate 301.

[0100] The third extension part 4224 is arranged at one end of the second extension part 4223 away from the first extension part 4222, and is in the shape of a rod with a rectangular cross-section. When the rotating member 422 is in the working position, the third extension part 4224 extends along the direction parallel to the first bottom plate 201 of the right-side first front swing arm connecting half part 200.

[0101] When the rotating member 422 is in the initial position, the length direction of the first extension part 4222 forms an obtuse angle with the horizontal plane.

[0102] The first pressing member 423 is in an L shape and includes a first positioning part 4231 and a first pressing part 4232. The first pressing member 423 is fixedly connected to the rotating member 422 through a screw 4234.

[0103] The first positioning part 4231 is a rectangular parallelepiped, installed on the side of the third extension part 4224 close to the first bottom plate 201, and the end face of the first positioning part 4231 is flush with the end face of the third extension part 4224 away from the second extension part 4223, and the widths are equal.

[0104] The first pressing part 4232 is a rectangular parallelepiped, arranged on the side of the first positioning part 4231 close to the first bottom plate 201, and the area of the first pressing part 4232 close to the first bottom plate 201 is smaller than the area of the first positioning part 4231 in the same direction.

[0105] One side of the first pressing part 4232 away from the first positioning part 4231 is the first pressing surface 4233.

[0106] When the rotating part 422 is in the working position, the first pressing surface 4233 of the first pressing part 423 closely adheres to the side plate folding part 307 of the right-side second front swing arm connecting half part 300, and further makes the side plate folding part 307 of the right-side second front swing arm connecting half part 300 closely adhere to the first bottom plate 201 of the right-side first front swing arm connecting half part 200, so as to press the right-side second front swing arm connecting half part 300 and the right-side first front swing arm connecting half part 200 from the direction perpendicular to the first bottom plate 201.

[0107] The second pressing part 424 is L-shaped and includes a second positioning part 4241 and a second pressing part 4242.

[0108] The second positioning part 4241 is a cuboid and is installed on one side of the second extension part 4223 close to the second bottom plate 301 of the right-side second front swing arm connecting half part 300, and the second positioning part 4241 is arranged close to the first extension part 4222.

[0109] The second pressing part 4242 is a cuboid and is arranged on one side of the second positioning part 4241 close to the second bottom plate 301, and the area of the second pressing part 4242 close to the second bottom plate 301 is smaller than the area of the second positioning part 4241 in the same direction.

[0110] The second pressing part 424 is fixedly connected to the rotating part 422 through a screw 4244.

[0111] One side of the second pressing part 4242 away from the second positioning part 4241 is the second pressing surface 4243.

[0112] When the rotating part 422 is in the working position, the second pressing surface 4243 of the second pressing part 424 closely adheres to the second bottom plate of the right-side second front swing arm connecting half part 300, so as to press the right-side second front swing arm connecting half part 300 from the direction perpendicular to the second bottom plate 301.

[0113] The limiting part 425 is used to limit the right-side first front swing arm connecting half part 200 and the right-side second front swing arm connecting half part 300, and includes a limiting part connecting part 4251, a first limiting part 4252 and a second limiting part 4253.

[0114] The limiting part connecting part 4251 is rod-shaped and is arranged on one side of the second extension part 4223 of the rotating part 422 close to the first side plate 201 of the right-side first front swing arm connecting half part 200, and is perpendicular to the horizontal direction of the rotating part 422.

[0115] The first limiting portion 4252 is provided at one end of the limiting member connecting portion 4251 away from the rotating member 422, extends in a horizontal direction perpendicular to the limiting member connecting portion 4251 towards the second bottom plate 301, and extends to the edge of the third side plate 303.

[0116] The second limiting portion 4253 is L-shaped, is provided on the bottom surface of the first limiting portion 4252, and is close to one end of the second limiting portion 4253 close to the rotating member 422. One side of the second limiting portion 4253 is perpendicular to the first limiting portion, and the other side is parallel to the first limiting portion 4252, and this side also extends to the edge of the third side plate 303.

[0117] When the rotating member 422 rotates to the working position, the inner surfaces of the first limiting portion 4252 and the second limiting portion 4253 close to the rotating member 422 are in contact with the surface of the third side plate 303 of the right-side second front swing arm connecting half portion 300 away from the first side plate 202, so as to limit the right-side second front swing arm connecting half portion 300 and the right-side first front swing arm connecting half portion 200 in the direction perpendicular to the first side plate 202.

[0118] The base 421 of the right-side pressing mechanism 42 and the supporting table 413 of the right-side positioning mechanism 41 are both arranged on the ground in a liftable manner. After the welding of the first welding point is completed, the manipulator 30 re-clamps the right-side second front swing arm connecting half portion 300, and the right-side positioning mechanism 41 and the right-side pressing mechanism 42 synchronously descend, and then the manipulator clamps the right-side second front swing arm connecting half portion 300 to adjust the position and continue the welding of other welding points.

[0119] The right-side sensor is used to sense whether the right-side first front swing arm connecting half portion 200 and the right-side second front swing arm connecting half portion 300 are positioned by the positioning mechanism, and the right-side pressing mechanism 42 rotates according to the sensing result of the right-side sensor to press the right-side first front swing arm connecting half portion 200 and the right-side second front swing arm connecting half portion 300.

[0120] The welding device 50 is used to weld the right-side first front swing arm connecting half portion 200 and the right-side second front swing arm connecting half portion 300. The welding device 50 includes a welding main machine, a welding head, and a welding base 51. The welding main machine is used to control the operation of the welding head. The welding head is installed above the welding base in a liftable manner and cooperates with the welding base for welding. Specifically, it is the prior art and will not be elaborated here. The welding base 51 is arranged on one side of the third supporting unit 4115, and its top surface is on the same horizontal plane as the top surfaces of the first supporting portion 41114 and the third supporting unit 4115 when the right-side positioning mechanism 41 is raised.

[0121] The controller 60 is used to control the operation of the first feeding device 10 for the right side, the second feeding device 20 for the right side, the manipulator 30, the fixing device 40 for the right side, the welding device 50, the first feeding device 70 for the left side, the second feeding device 80 for the left side, and the fixing device 90 for the left side.

[0122] When welding the right-side front swing arm connecting member, the controller 60 controls the first feeding device 10 for the right side and the second feeding device 20 for the right side to respectively convey the workpieces to be welded from the storage mechanism to the feeding ends, and then controls the manipulator 30 to respectively clamp the first half 200 of the right-side front swing arm connection and the second half 300 of the right-side front swing arm connection from the two feeding devices and transfer them to the fixing device 40 for the right side. Then, the controller 60 controls the positioning mechanism 41 for the right side in the fixing device 40 for the right side to position the workpieces to be welded and presses them tightly by the pressing mechanism 42 for the right side. The first predetermined area includes 2 welding points. The controller 60 first controls the welding device 50 to weld the first welding point in the first predetermined area, and then controls the robotic arm 30 to clamp the second half 300 of the right-side front swing arm connection to adjust the position and continue to complete the welding of the second welding point and the remaining predetermined areas.

[0123] The slide rail assembly 00 is arranged on the ground and connected to the controller 60, and includes a slide rail, a slide platform, and a slide motor. The slide platform is movably arranged on the slide rail, and the slide motor is used to drive the slide platform to move.

[0124] The fixing device 40 for the right side and the fixing device 90 for the left side are both installed on the slide platform along the length direction of the slide rail. When welding the right-side front swing arm connecting member, the controller 60 controls the slide rail assembly 00 to drive the fixing device 40 for the right side to move below the welding head. When welding the left-side front swing arm connecting member, the controller 60 controls the slide rail assembly 00 to drive the fixing device 90 for the left side to move below the welding head.

[0125] The following combines the attached Figures 1 - 18 to illustrate the specific process and method of using the bilateral front swing arm connecting member welding system 100 of the present invention to weld the right-side front swing arm connecting member. The following processes are all automatically carried out under the control of the controller 60:

[0126] Step 1: The first feeding device 10 for the right side feeds the first half 200 of the right-side front swing arm connection, and conveys 1 first half 200 of the right-side front swing arm connection from the first storage mechanism 11 to the first feeding end 12; meanwhile, the second feeding device 20 for the right side feeds the second half 300 of the right-side front swing arm connection, and conveys 1 second half 300 of the right-side front swing arm connection from the second storage mechanism 21 to the second feeding end 22.

[0127] Step 2: The robotic arm moves while the base 321 rotates, bringing the first clamping part 322 close to the right-side first front swing arm connecting half part 200 on the first feeding device 10. Then, under the action of the first clamping cylinder 3223 driving the first lifting push rod 3224, the first upper clamping plate 3221 and the first lower clamping plate 3222 clamp the second bottom plate part 204 of the right-side first front swing arm connecting half part 200.

[0128] Step 3: The manipulator 30 moves to the side of the second feeding device 20 on the right. While the base 321 rotates, the second clamping part 323 is brought close to the right-side second front swing arm connecting half part 300 on the feeding device. The robotic arm moves so that the upper surface of the second lower clamping plate 3232 contacts the folding part 305 of the right-side second front swing arm connecting half part 300. At the same time, the second limit cylinder 3235 is inserted into the limit hole 308a, and the upper surface of the second connecting platform 3236 contacts the bottom plate main body part 304. Then, the second clamping cylinder 3233 drives the second lifting push rod 3234 to descend, driving the second upper clamping plate 3231 to press down, thereby clamping the right-side second front swing arm connecting half part 300.

[0129] Step 4: The robotic arm moves the right-side first front swing arm connecting half part 200 and the right-side second front swing arm connecting half part 300 to the positioning mechanism 41. The base 321 rotates, bringing the first clamping part 322 close to the positioning mechanism 41 and placing the right-side first front swing arm connecting half part 200 on the first supporting unit 4111, such that the inner surface of the first bottom plate 201 contacts the first supporting surface 41115 and the first positioning hole 210 aligns with the first positioning cone 41122. Then, the first upper clamping plate 3221 rises, and the first clamping part 20 releases the second front swing arm connecting half part 200. Meanwhile, the push rod 4122 of the push rod assembly 412 moves in the direction close to the first supporting unit 4111 and contacts the first side plate 202, pushing the right-side first front swing arm connecting half part 200 so that the first positioning cone 41122 passes through the first positioning hole 210, and further causing the first side plate 202 to fit with the second supporting surface 41118 to achieve the positioning of the right-side first front swing arm connecting half part 200.

[0130] Step 5: The base 321 rotates and the robotic arm moves, causing the second clamping portion 323 to approach the positioning mechanism 41 and place the right-side second front swing arm connecting half 300 onto the second positioning unit 4114. The second upper clamping plate 3231 rises to release the clamped right-side second front swing arm connecting half 300. At the same time, the telescopic push rod 32371 extends from the surface of the second connecting platform 3236 under the push of the push cylinder 32372 and contacts the lower surface of the right-side second front swing arm connecting half 300. The telescopic push rod 32371 pushes the right-side second front swing arm connecting half 300, causing the limit hole 308a to disengage from the second limit cylinder 3235. At the same time, the second positioning cone 41142 passes through the second positioning hole 308, the third side plate 303 fits against the first side plate 201, and the second bottom plate 301 fits against the third supporting surface 146, and the second side plate 302 fits against the fourth supporting surface 134 for positioning. Then the robotic hand 30 moves away.

[0131] Step 6: When the right-side sensor senses that the right-side positioning mechanism 41 has completed the positioning of the right-side first front swing arm connecting half 200 and the right-side second front swing arm connecting half 300, the rotating member 422 of the right-side pressing mechanism 42 rotates from the initial position to the working position, causing the first pressing member 4243 to closely adhere to the side plate folding portion 307, and the second pressing member 424 to closely adhere to the second bottom plate 301, so that the right-side second front swing arm connecting half 300 is pressed against the right-side first front swing arm connecting half 200, and the limiting member 425 closely adheres to the third side plate 303 for lateral limiting.

[0132] Step 7: The welding device 50 welds the first welding point in the first predetermined area of the second front swing arm connecting half 200 and the right-side second front swing arm connecting half 300 on the positioning mechanism 41. Then the right-side pressing mechanism 42 rotates back to the initial position, and the robotic hand 30 approaches the positioning mechanism 41 and re-clamps the right-side second front swing arm connecting half 300.

[0133] Step 8: The right-side positioning mechanism 41 and the right-side pressing mechanism 42 descend synchronously, and the robotic hand 30 adjusts the angles and positions of the right-side second front swing arm connecting half 300 and the connected right-side first front swing arm connecting half 200, and continues to weld the second welding point and the remaining predetermined areas.

[0134] Step 9: After the front swing arm connecting piece is welded, the robotic hand 30 clamps the right-side second front swing arm connecting half 300 to transfer the welded right-side front swing arm connecting piece to the finished product area.

[0135] Step 10: The robotic arm drives the clamping mechanism 32 back to a position close to the feeding device under the control of the controller 60, and then repeats steps 1 - 9 to continue welding the next right-side front swing arm connecting piece.

[0136] If it is necessary to weld the left - type front swing arm connecting piece, before starting, the controller 60 first controls the slide rail assembly 00 to drive the fixing device 90 for the left side to move under the welding head, and then proceeds to the next step of feeding. The devices required for welding the left - type front swing arm connecting piece using the bilateral front swing arm connecting piece welding system 100 of the present invention include a manipulator 30, a welding device 50, a first feeding device 70 for the left side, a second feeding device 80 for the left side, and a fixing device 90 for the left side. The specific process and method only have differences in the left - right direction compared with welding the right - type front swing arm connecting piece, and will not be elaborated here.

[0137] Functions and effects of the embodiment

[0138] The bilateral front swing arm connecting piece welding system involved in the present invention includes a first feeding device for the right side, a second feeding device for the right side, a manipulator, a fixing device for the right side, a welding device, a controller, a first feeding device for the left side, a second feeding device for the left side, a fixing device for the left side, and a slide rail assembly. These structures have the following effects:

[0139] The first feeding device for the right side and the second feeding device for the right side can respectively feed the first half of the right - type front swing arm connecting piece and the second half of the right - type front swing arm connecting piece; the first feeding device for the left side and the second feeding device for the left side can respectively feed the first half of the left - type front swing arm connecting piece and the second half of the left - type front swing arm connecting piece, which can realize automatic feeding, reduce labor costs, and improve processing efficiency.

[0140] The manipulator includes a robotic arm and a clamping mechanism. The robotic arm can drive the clamping mechanism to move, and the clamping mechanism is rotatably arranged on the robotic arm, making the manipulator have a high degree of freedom.

[0141] The clamping mechanism includes a base, a first clamping part, and a second clamping part. The first clamping part and the second clamping part are both installed on the base, and the base is rotatably installed on the robotic arm through a rotating shaft, which is convenient for the first clamping part and the second clamping part to respectively clamp workpieces.

[0142] The first clamping portion includes a first upper clamping plate, a first lower clamping plate, a first clamping cylinder, a first lifting push rod, a first limiting cylinder, a first connecting platform, and a first thrust assembly. The first lower clamping plate is fixed on the base, and the first upper clamping plate is connected to the first clamping cylinder through the first lifting push rod. The first upper clamping plate is arranged above the first lower clamping plate in a liftable manner, and the lower surface of the first upper clamping plate and the upper surface of the first lower clamping plate are parallel planes. When it is necessary to clamp and move the right-side first front swing arm connecting half portion, the first upper clamping plate and the first lower clamping plate are clamped on the second bottom plate portion, and the first side plate and the first bottom plate portion are suspended. When it is necessary to clamp and move the left-side second front swing arm connecting half portion, the first upper clamping plate and the first lower clamping plate are clamped on the folded portion of the second bottom plate. The first limiting cylinder is inserted into the limiting hole to limit the left-side second front swing arm connecting half portion. The first thrust assembly can push the left-side second front swing arm connecting half portion to transfer it to the fixing device on the left side.

[0143] The second clamping part is structurally symmetrical to the left and right of the first clamping part, and includes a second upper clamping plate, a second lower clamping plate, a second clamping cylinder, a second lifting push rod, a second limiting cylinder, a second connecting platform, and a second thrust assembly. The second upper clamping plate is connected to the second clamping cylinder through the second lifting push rod. The second lower clamping plate is fixed on the base, and the second upper clamping plate is arranged above the second lower clamping plate in a liftable manner. The lower surface of the second upper clamping plate and the upper surface of the second lower clamping plate are parallel planes. The second clamping cylinder can drive the second lifting push rod to descend, driving the second upper clamping plate to press down, so as to clamp the left-side first front swing arm connecting half or the right-side second front swing arm connecting half together with the second lower clamping plate below. When clamping the left-side first front swing arm connecting half, the second upper clamping plate and the second lower clamping plate are clamped on the second bottom plate part, and the first side plate and the first bottom plate part are suspended. When clamping the right-side second front swing arm connecting half, the second upper clamping plate and the second lower clamping plate are clamped on the folding part of the second bottom plate. The second connecting platform is obliquely arranged on the side of the second lower clamping plate, and the included angle between the upper surface of the second connecting platform and the upper surface of the second lower clamping plate is equal to the bending angle of the second bottom plate, making the overall second clamping part more conform to the shape of the right-side second front swing arm connecting half and achieving a more stable clamping effect. The second limiting cylinder is installed on the connecting platform and corresponds to the position of the limiting hole. The diameter of the second limiting cylinder is adapted to the aperture of the limiting hole and can be inserted into the limiting hole to limit the second front swing arm connecting half. The end of the second limiting cylinder has a chamfer to facilitate insertion into the limiting hole. The second thrust assembly includes a telescopic push rod and a thrust cylinder. The thrust cylinder is installed below the connecting platform and can drive the telescopic push rod. The telescopic push rod is telescopically arranged on the second connecting platform and is connected to the thrust cylinder. The second thrust assembly can push the right-side second front swing arm connecting half to disengage from the second limiting cylinder and transfer it to the fixing device for the right side. The telescopic push rod is arranged parallel to the second limiting cylinder, and the telescopic length of the telescopic push rod is slightly greater than the height of the second limiting cylinder, so that the second limiting cylinder can completely escape from the limiting hole. After the robotic arm moves the second front swing arm connecting half clamped by the second clamping part to the fixing device for the right side, the second upper clamping plate and the second lower clamping plate release the right-side second front swing arm connecting half, and the telescopic push rod extends from the surface of the second connecting platform under the push of the thrust cylinder and contacts the lower surface of the right-side second front swing arm connecting half, and then pushes the right-side second front swing arm connecting half to disengage from the second limiting cylinder and transfer it to the fixing device for the right side, facilitating the subsequent welding process.

[0144] The first clamping part and the second clamping part of the clamping mechanism are symmetrical to each other, and can be applied to both the left-side type first and second front swing arm connecting half parts and the right-side type first and second front swing arm connecting half parts. It can clamp the corresponding workpieces according to the processing requirements. The processing of the left-side type front swing arm connecting piece and the right-side type front swing arm connecting piece can share a set of clamping mechanisms, which can reduce the cost of hardware equipment, reduce the space occupied by the equipment at the same time, and simplify the overall structure of the welding system. In addition, the first clamping part and the second clamping part can respectively clamp the first front swing arm connecting half part and the second front swing arm connecting half part from the corresponding feeding devices in sequence, and then transfer them simultaneously. In this way, the time required for clamping and transferring the workpieces can be effectively shortened, the processing efficiency can be improved, and at the same time, the labor cost can be reduced and the safety hazards can be reduced. Before welding, the clamping mechanism can transfer the first front swing arm connecting half part and the second front swing arm connecting half part from the feeding device to the positioning mechanism at the welding station; after welding is completed, it can clamp the front swing arm connecting piece and transfer it to the finished product area, which can effectively improve the processing efficiency and is conducive to the automation of the overall production line.

[0145] The fixing device for the right side can clamp the right-side type first front swing arm connecting half part and the right-side type second front swing arm connecting half part, and includes a positioning mechanism for the right side, a pressing mechanism for the right side, and a sensor for the right side.

[0146] The positioning mechanism for the right side can cooperate with the supporting surface through the first positioning cone and the second positioning cone arranged on the supporting base to position the right-side type front swing arm connecting half part. The sensor for the right side can sense whether the right-side type first front swing arm connecting half part and the right-side type second front swing arm connecting half part are correctly positioned, which can avoid welding position errors and improve the finished product rate.

[0147] The positioning mechanism for the right side further includes a push rod assembly, which is arranged on one side of the first positioning cone of the supporting base and includes a driving part and a push rod that can be driven by the driving part to expand and contract along the extending direction of the first positioning cone. The push rod can push the right-side type first front swing arm connecting half part to make it closely adhere to the second supporting surface to achieve limiting, and further fix the right-side type first front swing arm connecting half part.

[0148] The supporting base in the positioning mechanism for the right side includes a first supporting unit and a second supporting unit, on which a second supporting piece and a second limiting piece extending along the horizontal direction are respectively arranged. The second supporting surface and the fourth supporting surface are respectively the end faces of the second supporting piece and the second limiting piece, so as to limit the right-side type first front swing arm connecting half part and the right-side type second front swing arm connecting half part, and splitting them into each supporting unit can reduce the consumables of the positioning mechanism for the right side.

[0149] The pressing mechanism on the right can, based on the sensing result of the sensor on the right, that is, after the sensor on the right senses that the positioning mechanism on the right positions the connecting half part of the right front swing arm, press the connecting half part of the second right front swing arm against the pressing mechanism through the first pressing member and the second pressing member, achieving automatic fixation of the two connecting half parts of the right front swing arms, making their contact parts closer, not prone to shaking and displacement during the welding process, and effectively improving the welding accuracy. Each part of the fixing device on the right in this embodiment matches and is correspondingly designed with the connecting half part of the right front swing arm, not only precisely matching each surface, but also saving materials. Moreover, the fixing device on the right in this embodiment can press the two connecting half parts of the right front swing arms, eliminating the need for manual pressing and fixation, preventing non-compliance in processing due to parts not being closely attached, preventing potential dangers that may occur during manual processing, and simultaneously improving the processing efficiency.

[0150] The pressing mechanism on the right further includes a limiting member, which can fit against the third side plate of the connecting half part of the second right front swing arm to perform lateral limiting on the connecting half part of the second right front swing arm, and cooperate with the first pressing member and the second pressing member to achieve limiting in three directions and prevent the connecting half part of the front swing arm from shifting in the horizontal direction.

[0151] The first pressing member of the pressing mechanism on the right is arranged at one end of the third extension away from the second extension, and the second pressing member is arranged at one end of the second extension close to the first extension, that is, the distance between the first pressing member and the second pressing member is relatively large, enabling relatively stable fixed pressing on the connecting half part of the second right front swing arm.

[0152] The base of the pressing mechanism on the right and the supporting platform of the positioning mechanism on the right are both arranged on the ground in a liftable manner, facilitating the replacement of welding points during the welding process and avoiding interference and obstruction with the workpiece.

[0153] The fixing device on the left is symmetrical in structure to the fixing device on the right, capable of fixing the positions of the connecting half part of the first left front swing arm and the connecting half part of the second left front swing arm to be welded, not prone to shaking and displacement during the welding process, and effectively improving the welding accuracy.

[0154] The welding device can weld the first front swing arm connecting half part and the second front swing arm connecting half part together to obtain a finished front swing arm connecting piece. The welding device includes a welding main machine, a welding head and a welding base. The welding main machine is used to control the operation of the welding head, and the welding head and the welding base cooperate to weld the welding points. The welding base is arranged on one side of the third supporting unit, and its top surface is on the same horizontal plane as the top surfaces of the first supporting part and the third supporting unit when the positioning mechanism rises, making the welding position more accurate. The welding device in this embodiment can be applied to both the left-side type front swing arm connecting piece and the right-side type front swing arm connecting piece. The processing of the left-side type front swing arm connecting piece and the right-side type front swing arm connecting piece can share the same set of welding device, which can reduce the cost of hardware equipment, reduce the space occupied by the equipment at the same time, and simplify the overall structure of the welding system.

[0155] The controller can control the operation of the first feeding device for the right side, the second feeding device for the right side, the manipulator, the fixing device for the right side, the welding device, the first feeding device for the left side, the second feeding device for the left side and the fixing device for the left side.

[0156] The slide rail assembly is arranged on the ground and connected to the controller, and includes a slide rail, a slide platform and a slide motor. The slide platform is movably arranged on the slide rail, and the slide motor can drive the slide platform to move. The fixing device for the right side and the fixing device for the left side are both installed on the slide platform along the length direction of the slide rail, which is convenient for switching according to the processing needs. When welding the right-side type front swing arm connecting piece, the controller controls the slide rail assembly to drive the fixing device for the right side to move below the welding head. When welding the left-side type front swing arm connecting piece, the controller controls the slide rail assembly to drive the fixing device for the left side to move below the welding head.

[0157] The controller can control the feeding device to feed, and then control the manipulator to clamp the first front swing arm connecting half part and the second front swing arm connecting half part from the two feeding devices respectively and transfer them to the fixing device. Then, it controls the positioning mechanism in the fixing device to position the workpiece to be welded and press the two together through the pressing mechanism. Finally, it controls the welding device to weld the workpiece, and the robotic arm clamps the workpiece to change the welding points to complete the overall welding. During the welding process, the controller makes the devices in the welding system cooperate with each other to operate, shortening the time interval between each process while making the processing proceed smoothly, effectively improving the processing efficiency and quality.

[0158] Therefore, the bilateral front swing arm connector welding system involved in the present invention can replace manual labor to realize the automated processing process of feeding, positioning, and welding of the first front swing arm connection half and the second front swing arm connection half. Moreover, it is applicable to the welding of both left-side front swing arm connectors and right-side front swing arm connectors, reducing the labor and material costs in production and processing. At the same time, it can also avoid the safety hazards existing in manual operations, improve the processing efficiency and the finished product rate, and ensure the consistency of the finished product quality, achieving a better processing effect. The bilateral front swing arm connector welding system replacing manual welding processing also helps to realize the automation of the overall production line.

[0159] The above embodiments are preferred cases of the present invention and are not used to limit the protection scope of the present invention.

Claims

1. A welding system for bilateral front swing arm connectors, which is used to weld a first front swing arm connecting half part and a corresponding second front swing arm connecting half part into a front swing arm connector. The first front swing arm connecting half part is divided into a left-side type first front swing arm connecting half part and a right-side type first front swing arm connecting half part that are symmetrical to each other. The second front swing arm connecting half part is also correspondingly divided into a left-side type second front swing arm connecting half part and a right-side type second front swing arm connecting half part that are symmetrical to each other. It is characterized in that, Comprising: A first feeding device for the right side, used for feeding the first front swing arm connecting half part of the right side type; A second feeding device for the right side, used for feeding the second front swing arm connecting half part of the right side type; A first feeding device for the left side, used for feeding the first front swing arm connecting half part of the left side type; A second feeding device for the left side, used for feeding the second front swing arm connecting half part of the left side type; A manipulator, used for clamping and moving the first front swing arm connecting half part and the second front swing arm connecting half part, including a robotic arm and a clamping mechanism rotatably arranged on the robotic arm; A fixing device for the right side, used for fixing the positions of the first front swing arm connecting half part and the second front swing arm connecting half part of the right side type to be welded, including a positioning mechanism for the right side, a pressing mechanism for the right side, and a sensor for the right side; A fixing device for the left side, used for fixing the positions of the first front swing arm connecting half part and the second front swing arm connecting half part of the left side type to be welded; A welding device, used for welding the first front swing arm connecting half part and the second front swing arm connecting half part, including a welding main body, a welding head, and a welding base; And A controller, used for controlling the operation of the first feeding device for the left side, the second feeding device for the left side, the first feeding device for the right side, the second feeding device for the right side, the manipulator, the fixing device for the left side, the fixing device for the right side, and the welding device; A slide rail assembly, arranged on the ground and connected to the controller, including a sliding track, a sliding platform, and a sliding motor, wherein, the sliding platform is movably arranged on the sliding track, the sliding motor is used for driving the sliding platform to move, the fixing device for the left side and the fixing device for the right side are installed on the sliding platform; wherein, the clamping mechanism includes a base, a first clamping part, and a second clamping part, the base is rotatably installed on the robotic arm, the first clamping part is installed on the base, including a first upper clamping plate, a first lower clamping plate, and a first clamping cylinder, the second clamping part is installed on the base, including a second upper clamping plate, a second lower clamping plate, and a second clamping cylinder, the first lower clamping plate and the second lower clamping plate are fixed on the base, the first upper clamping plate is liftably arranged on the base and connected to the first clamping cylinder; wherein, the first front swing arm connecting half part includes a first bottom plate and a first side plate perpendicular to the first bottom plate, the first side plate is an obtuse triangle and has a first positioning hole, the second front swing arm connecting half part includes a second bottom plate and a second side plate and a third side plate respectively perpendicular to both sides of the second bottom plate, the second bottom plate has a second positioning hole and a limiting hole, the second side plate is an obtuse triangle and is parallel to the first side plate, an obtuse angle is formed between the first bottom plate and the second bottom plate, and one side of the second side plate also has a side plate folding part parallel to the first bottom plate, the second clamping part further includes a limiting cylinder and a connecting platform, the limiting cylinder is installed on the connecting platform, the connecting platform is connected to the second lower clamping plate, The diameter of the limiting cylinder is adapted to the aperture of the limiting hole and is used to limit the second front swing arm connecting half part.

2. The double-sided front swing arm connecting piece welding system according to claim 1, characterized in that: When welding the front swing arm connecting piece of the right type is required, the controller is used to control the slide rail assembly to drive the fixing device for the right side to move below the welding head. The controller controls the first feeding device for the right side and the second feeding device for the right side to respectively feed the first front swing arm connecting half part of the right type and the second front swing arm connecting half part of the right type. Then, it controls the manipulator to clamp the workpieces to be welded from the two feeding devices respectively and transfer them to the fixing device for the right side. Then, it controls the fixing device for the right side to press them tightly. Then, it first controls the welding device to weld the first predetermined area of the first front swing arm connecting half part of the right type and the second front swing arm connecting half part of the right type. Then, it controls the robotic arm to clamp the second front swing arm connecting half part of the right type to adjust the position and continue to complete the welding of other predetermined areas. Finally, it controls the robotic arm to transfer the welded front swing arm connecting piece to the finished product area.

3. The double-sided front swing arm connecting piece welding system according to claim 1, characterized in that: Among them, The first feeding device for the right side includes a first storage mechanism and a first feeding end, and is used to sequentially convey a plurality of the first front swing arm connecting half parts of the right type stacked in the first storage mechanism to the first feeding end. The second feeding device for the right side includes a second storage mechanism and a second feeding end, and is used to sequentially convey a plurality of the second front swing arm connecting half parts of the right type stacked in the second storage mechanism to the second feeding end.

4. The double-sided front swing arm connecting piece welding system according to claim 1, characterized in that: Among them, The second clamping part further includes a thrust assembly. The thrust assembly is used to push the second front swing arm connecting half part away from the limiting cylinder and includes a telescopic push rod and a thrust cylinder. The telescopic push rod is telescopically arranged on the connecting platform and is connected to the thrust cylinder. The thrust cylinder is installed on the connecting platform and is used to drive the telescopic push rod.

5. The double-sided front swing arm connecting piece welding system according to claim 1, characterized in that: Among them, The positioning mechanism for the right side includes a supporting base, a first positioning cone, and a second positioning cone. The supporting base has a first supporting surface that fits with the first bottom plate for supporting, a second supporting surface that fits with the first side plate, a third supporting surface that fits with the second bottom plate, and a fourth supporting surface that fits with the second side plate. The first positioning cone is arranged on the second supporting surface, and its extending direction is perpendicular to the first side plate and is used to pass through the first positioning hole to position the first front swing arm connecting half part of the right type. The second positioning cone is arranged on the third supporting surface, and its extending direction is perpendicular to the second bottom plate and is used to pass through the second positioning hole to position the second front swing arm connecting half part of the right type.

6. The bilateral front swing arm connecting piece welding system according to claim 5, wherein: Among them, The positioning mechanism for the right side further includes a push rod assembly, The push rod assembly is arranged on one side of the first positioning cone of the supporting base, and includes a driving member and a limiting push rod that can be driven by the driving member to expand and contract along the extending direction of the first positioning cone, The limiting push rod moves towards the supporting base to contact the first side plate, and makes the first side plate contact the second supporting surface, so as to limit the right-side first front swing arm connecting half part.

7. The bilateral front swing arm connecting piece welding system according to claim 6, wherein: Among them, The pressing mechanism for the right side includes a fixed seat, a rotating member, a first pressing member and a second pressing member, The rotating member includes a rotating end rotatably connected to the fixed seat, The first pressing member is fixed on the rotating member, and has a first pressing surface that closely adheres to the side plate folding part so as to press the right-side second front swing arm connecting half part against the right-side first front swing arm connecting half part from a direction perpendicular to the side plate folding part, The second pressing member is fixed on the rotating member, and has a second pressing surface that closely adheres to the second bottom plate so as to press the right-side second front swing arm connecting half part against the right-side first front swing arm connecting half part from a direction perpendicular to the second bottom plate, The sensor for the right side is used to sense whether the right-side first front swing arm connecting half part and the right-side second front swing arm connecting half part are positioned by the positioning mechanism for the right side, The rotating member rotates according to the sensing result of the sensor for the right side to press the right-side second front swing arm connecting half part.

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